So I need to replace a damaged flexplate bolt and it is M10x1.25x35mm long. This bolt passes through the metal disk, then the flex plate and into the counterbalance. The head is stamped '8' so I'm thinking this is grade 8.8 bolt, where in metric bolts I would think a grade 10.9 is the desired strength. I know that these are in shear only on the flex plate and either would work likely but just trying to understand the marking on the bolt head of just '8'.




Also anyone selling some flexplate bolts?